Damien Symonds

Yay! Most importantly, are you running Bridge as well?

No, this can't possibly be right. Please check again.

Well, I think it's just age. But I'd love to rule out an actual system problem. If we could connect the desktop screen to the Macbook and calibrate it correctly, we'd know that the Mac's operating system can handle the calibration just fine, and it would narrow down the problem to the Macbook screen itself.

Alternatively, you can consider upgrading your calibrator, I guess, to see if a newer one will work better on the Macbook screen. But since it's an older screen, I don't think a newer calibrator will help, to be honest.

Luckily they're not very expensive. You'll need a DVI to DisplayPort, or DVI to Mini DisplayPort, depending what your Macbook has. DVI to DisplayPort DVI to Mini DisplayPort

It could be a simple workspace problem, or it cold be a worse glitch. Let's rule out the important stuff first. Please do this for me. Then, with no photos open in Photoshop at all, go to Window>Workspace>Reset Workspace. Then restart Photoshop, and see if the behaviour has changed.

http://t.qkme.me/3ou0p2.jpg

You're welcome. Have you read through the Bridge Class yet?

It sounds like you're as close as you're going to get. From now on, just monitor it as you get new sets of prints.

You've pressed Ctrl Y by accident. Just press it again. Don't worry, it hasn't done any harm to your photos at all.

If we can get a feel for the percentage, we can make a decision about what to do with the calibration. If it's about 50/50, you might decide to recalibrate the screen a bit warmer, so it's about halfway between the two lots of prints. Whereas if it's more like 75% screen-to-print match, and only 25% where the screen is a little too cool, you might decide to recalibrate the screen only a tiny bit warmer.

Those specs, under "Video Input", say that the monitor has a DVI port. Can you find it on yours?

This one? https://www.cnet.com/products/lg-w2243t-pf-lcd-monitor-full-hd-1080p-21-5/specs/

So what's our percentage here? For how many prints is the screen NOT too cool, compared to how many for which it is?

No, it's really important that we choose our words carefully here. The prints are the benchmark. You mean the screen is cooler than those two prints, yes?

Very true. Ok, the two prints that don't quite match - in what way does the screen differ from them?

Well, now's the time to compare them all, isn't it? This will form at least part of your lab decision.

Ok, now I'm confused again. Didn't you say you had test prints from a number of labs?

Ok, this is promising. When you say "a couple that don't match" ... are they from one particular lab?

No, I really just want to you tell me about the monitor. What brand is it?

Great, so you're following these instructions? It doesn't seem like you've read all the way to the troubleshooting part?

Ok, can you update your profile details to say Mac laptop? Ta. Which Spyder do you have?

And you're calibrating the onboard screen? Or do you have a desktop screen running off it?

Your sidebar says you have a Mac desktop. Is that current? If so, was your old computer a Mac too?

Wait, overall redness? This is much different to what you were saying before. If the print is yellower than the screen, the screen needs to be calibrated a bit warmer, yes? By the way, what is new in this equation? Is it a new screen, or a new calibrator? Why is this a problem all of a sudden?